Oil-retaining box.



"No. 707,043. Patented Aug.-'l2, I902. G. W. WIL MOT, N. MALEY 8.0. T. BROWN.

OIL RETAINING BOX.

(Application mea Nov. 7, 1901. (No Model.)

BRIE Pn'zas cu, womuma. WASHINGTON a. f;-

UNITE STATES,

PATENT OFFICE.

GEORGE WV. WILMOT, NIXON MALEY, AND GEORGE T. BROWN, FREE- LAND, PENNSYLVANIA.

OIL-RETAINING BOX.

SIECIFIGATION forming part of Letters Patent No. 707,043, dated August 12, 1902. Application filed November '7, 1901. gerial No. 81,410. (No model.)

To atZZ whont it may concern: j

Be it kno'wn'that' we, GEORGE V. \(VILMOT, NIXON MALEY, and GEORGE T. BROWN, citizens of the United States, residing at Freeland, in the county of Luzerne and State of Pennsylvania, have invented a new and.useful Oil-RetainingBox, ofwhich the following is a specification.

The invention relates to improvements in oil-retaining-boxes. g

The object of the present, invention is to improve theconstruction of oil-retainingjournal-boxes and to provide a simple and comparatively inexpensive one designed for use on mining-cars and adapted to be readily constructed and capable of positively retaining a lubricant within it and of preventing the same from leaking at the inner end of the journal and of excluding dust at that point.

responding parts in all the figures of the draw lugs.

l designates a Wheel-hub designed particularly for use on mining-cars and provided at its outer end with a cap 2 of greater diameter than the journal 3 of the axle 4 and preferably formed integral Withthe hub; but it may be constructed in any other suitable manner. The cap is provided at its outer end with an oil-hole 5, having interior screw-threads and adapted to be closed by a plug, when desired, for excluding dustfrom the cap. The lower portion of the cap is designed to be filled with lubricating-oil for lubricating the axle, and as the front of the hub isclosed the oil cannot escape at that point. The outer end of the journal 3 is provided with a transverse opening through which passes a pin 6, which engages the outer end of the hub, as clearly illustrated in Fig. 1. The cap 2 is provided at diametrically opposite points with threach ed apertures, which are normally closed by immovable plugs 7, and these'apertures are adapted to be alined with the transverse opening of the outer end of the journal to permit the transverse pin 6 to be removed and replaced. The inner end of the hub is provided with inner and outer concentric bores "8 and 9, receiving, respectively, a collar or enlargement 10 of the journal 3 and an oilretaining shield or' ring 11, which is retained in the outer annular recess 9 by an attachment plate or ring 12, secured to the inner end of the hub by means of bolts 13 or other suitable fastening devices. The collar or enlargement 10 of thejournal extends from the vertical Wall of the inner annular recess 8 to 'a point slightly beyond the inner face of the attachment plate or ring 12, and it receives and fits snugly within the ring or shield 11, and the latter presents metallic side faces to the inner vertical Wall of the outer annular recess 9 and to the inner face of the attachment plate or ring 12. The outer annular recess 9 is of greater diameter than the shield or ring, and while it is securely held against movement on the hub longitudinally of the axle it is permitted free radial movement in all directions to enable it to preserve its contactwith the end of the hub and with the attachment plate or ring when the journal becomes Worn and there is a limited vibration of the parts incident to such wear. The metallic faces of the ring or shield are adapted to fit sufficiently close to the hub and the collar of the axle to efiectually prevent the escape of thelubricaut, and such contact also serves to exclude dust and dirt. The Wear on the shield or ring is reduced to a minimum, as it is only subjected to a vertical pressure resulting from its own weight, as its outer periphery is spaced from the outer circumferential wall of the recess 9. This construction effectually prevents the shield or ring from being subjected to the weight of the walls of the groove or way.

.tion of the bore or bearing-opening of the to be readily placed within the groove or way formedby the outer recess and the shield or plate, and when the parts are assembled the said groove or way is entirely closed at the exterior of the hub entirelyaronnd the same, so that there is no chance for dust to settle upon the hub and work downward into the bearing.

It has been found by experience that a solid metallic ring or shield 14 may be constructed to fit sufiiciently close to the inner and outer side faces at thegroove or way to prevent the escape of the lubricant; but should it be desired to secure a "closer contact between the metallic faces the ring or shield 11 may be used. The ring or shield 11 (illustrated in Figs. 1 and 3) is composed of a pair of rings or plates 15 and an intermediate ring orlayer 16, of felt or other suitable material, which is adapted when the parts of the hub are as sembled to be compressed and which will possess sufficient elasticity to hold the metallic plates or rings 16 firmly-in engagement with The solid metallic ringer shield 14c and the side plates or rings 15 of the composite shield are preferably constructed of brass; but any other suitable material may be employed for thispurpose. I

It will be seen that the oil-retaining journal-box is simple in construction, that it is easily and cheaply manufactured, and that the guard or ring presents' metallic faces to the box and the axle and eifectually prevents the escape of the lubricant. It will also be seen that while the shield or ring is capable of radial movement in any direction on the hub it is securely held against movement thereon longitudinally 'of theaxle and that the'outer edge of the shield or ring is spaced from the hub, whereby the shield is subjected to a vertical strain or pressure resulting from its weight only and that it cannot after the journal and the box have become worn be subjected to the weight of the car. Also it will be readily apparent that the attachment ring or plate, which cooperates with the body portion of the hub and the outer annular recess thereof to form the groove or way for the shield or ring, entirely closes such groove or way at the exterior of the hub throughout the entire extent of the same, so that there is no liability of dust settling upon the exterior of the hub and working downward into the bearing.

The oil-retaining axle-box, besides being applicable to and especially adapted for mining-cars, is designed to be applied to pulleys and various other forms of wheels requiring an oil-tight and dust-proof bearing.

What we claim is 1. In a device of the class described, the

teams combination of a hub provided at its inner end with an annular recess, a plate detachably secured to the inner end of the hub beyond the recess and forming an outer wall for the recess to provide a vertical way and extending entirely around the recess and closing the same at the top, bottom and sides of the hub, a spindle, and a vertical shield or nular recess and being capable of radial move-' ment in the. way, whereby the shield or ring is prevented from being subjected to the Weight of the spindle when the parts become worn, substantially as described.

2. In a device of the class described, the combination of a hub provided at its inner end with an annular recess and having an annular flange extending outward from the hub in substantially the same plane as the annular recess, a plate detachably secured to the annular flange and forming an outer wall for the annular recess and extending entirely around the same and closing the said recess at the top, bottom and'sides of the hub,a spindle, and a vertically-disposed shield or ring presenting metallic faces to the spindle and to the walls of the recessto prevent the escape of oil'and to exclude dust, said shield or ring being of less diameter than the recess and spaced from the periphery thereof to permit it to move radially and to 'prevent it from coming in contact with the hub when the bear- 3. In a device of the class described, the

combination of a hub provided'at its inner end with an annular recess, a detachable plate secured to the inner end of the hub and extending entirely'aronnd the recess and forming an outer wall for the same to provide a vertical way, and an expansible shield or ring arranged in the way and composed of two metal side plates presenting metallic faces to the walls of the way and to the spindle, and an intermediate layer of compressed material adapted to hold the metal side plates in contact with the sides of the way, said shield or ring being of less diameter than the recess and spaced fromthe periphery thereof to permit it to move radially with the spindle without being snbjected'to the weight of the same, substantially as described;

In testimony that we claim the foregoingas our own we have hereto affixed our signatures in the presence of two witnesses.

GEORGE, W. WILMOT. NIXON MALEY. GEORGE T. BROWN.

Witnesses:

THOMAS A. BUCKLEY, JAMES GoULnEN; 

